Warmer insert



FIG. 1 is a top front perspective view of the warmer insert of the subject invention;

FIG. 2 is a top rear perspective view of the warmer insert of FIG. 1;

FIG. 3 is a front view of the warmer insert of FIG. 1;

FIG. 4 is a rear view of the warmer insert of FIG. 1;

FIG. 5 is a left side view of the warmer insert of FIG. 1, the right side view being a mirror image thereof;

FIG. 6 is a top view of the warmer insert of FIG. 1; and,

FIG. 7 is a bottom view of the warmer insert of FIG. 1. 

The ornamental design for the warmer insert, as shown and described. 